@misc{rfc6794,
    series =    {Request for Comments},
    number =    6794,
    howpublished =  {RFC 6794},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC6794},
    url =       {https://www.rfc-editor.org/info/rfc6794},
    author =    {Gonzalo Camarillo and Jonathan Rosenberg and Volker Hilt},
    title =     {{A Framework for Session Initiation Protocol (SIP) Session Policies}},
    pagetotal = 36,
    year =      2012,
    month =     dec,
    abstract =  {Proxy servers play a central role as an intermediary in the Session Initiation Protocol (SIP) as they define and impact policies on call routing, rendezvous, and other call features. This document specifies a framework for SIP session policies that provides a standard mechanism by which a proxy can define or influence policies on sessions, such as the codecs or media types to be used. It defines a model, an overall architecture and new protocol mechanisms for session policies. {[}STANDARDS-TRACK{]}},
}